Essex · Air handling unit cleaning
AHU Cleaning in Billericay
AHU cleaning for businesses, landlords and public buildings in Billericay. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Dirty coils holding back the airflow
- Plant that has been serviced but not cleaned
- Stale or musty smells from the ventilation
Your questions about AHU cleaning in Billericay
Can you come to Billericay after we close?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Billericay needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Can ventilation in schools around Billericay be cleaned out of term?
Yes, and it’s the easiest time to do it. The FSA’s register shows about 12 schools and colleges with food registrations within roughly a mile and a half of Billericay. Just phone us on 0345 646 2711 or drop us a line with your term dates and we will plan around them.
Will we get paperwork for the AHU clean?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
What if parts of the system can’t be reached?
We never leave them off the paperwork. You’ll know exactly which parts weren’t reached and why, along with a quote to put access in.
Can you come out in an emergency?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we will talk you through the next steps.
Can you fix a faulty AHU?
AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report for your maintenance team to follow up.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
What’s TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t legislation, but it’s the standard people check against.
AHU cleaning for kitchens and businesses in Billericay
We clean air handling units for buildings in Billericay and across Essex, working to TR19® Air, in buildings such as offices, schools, healthcare sites and shops. Units are cleaned when the site can spare them, often evenings, overnight or weekends. If you have odours coming through the supply air and plant that needs cleaning after a refit, we can help, from internal panels, filter sections and drain trays onwards.
For a school, surgery or office in Billericay, cleaning is planned around opening hours: evenings, weekends or school holidays.
Think of the report as the system’s health record: dated, with pictures, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Where
- Billericay (CM12, CM11, CM4)
- Wider area
- Essex
- Paperwork
- Report and pictures after the visit
- Quote
- A fixed price before work begins
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
What we are called out for in Billericay
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
What we’re most often called out for:
- Coils clogged with dust and debris
- Units needing a clean before a new tenant or handover
- Dirty filters cutting the airflow
- Condensate trays that will not empty
Healthcare buildings such as Mayflower Community Hospital, about 0.9 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Billericay, yours matters too.
Questions to ask before you book
- Whether a written report and pictures are included
- Whether a survey comes first
- What’s included in the scope, part by part
- Whether they’re fully insured
Honest limits
It’s worth knowing the limits before booking:
- Breakdowns that need a mechanical engineer
- Controls and BMS settings that run the unit
- The supply and extract ducts, quoted separately
If you’re not sure, just call us on 0345 646 2711 or send us an email and we will give you a straight answer.
What the work covers
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Filter sections
- Supply and extract fans
- Internal panels
How the visit works
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, and floors and nearby surfaces are sheeted. The work itself takes a single shift for a typical unit, longer for large or heavily soiled ones. Photos taken on a phone are normally enough for us to plan a job in Billericay and give a fixed quote.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
How to prepare
- Have your last certificate or report to hand
- Mention any locked doors, roof access or ceiling voids
- Agree a time when the area can be out of use
How to get a quote
Want a quote for AHU cleaning? Please ring 0345 646 2711 or drop us a line and tell us about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
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Landlords, agents and facilities managers
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Whether it’s one building or many, you get the same standard: a survey first, a fixed quote, the work timed around the site and a report with photos.
What affects the cost of AHU cleaning
We do not publish a price list, because sites vary so much. The quote depends on:
- Access, including roofs, risers and ceiling voids
- How big the system is
- One-off work versus a regular cycle
- Site rules, permits and inductions
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Your last certificate, test record or report
- Your opening hours and when the area is out of use
- Close-ups of filters, grilles, hatches or access panels
- A few general shots of the system
Quotes are quick. Call or email with a few details and you’ll normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Staff cleaning versus specialist work
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
Also near Billericay
More services for Billericay
AHU cleaning around Billericay
There are about 12 schools, colleges and universities and about 21 care, childcare and hospital premises on the FSA’s food hygiene register across Billericay and its immediate surroundings (about a mile and a half). Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. About 24 miles out from central London, Billericay is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you. The nearest hospital to Billericay is Mayflower Community Hospital, about 0.9 miles south-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
For schools like Sunnymede Junior School, the holidays are the usual time to inspect and clean ventilation. If you run an office near Billericay station, its supply ductwork can gather dust for years before anyone looks inside.
Billericay is about 4 miles north of Basildon, in Essex. Wherever you are in the CM12 postcode area, we can carry out AHU cleaning at your premises. Our Essex coverage runs to 644 places, and Billericay is one of them. Chelmsford is in our area too, about 8 miles from Billericay.
Here we cover the CM12, CM11 and CM4 postcode area for AHU cleaning. Local streets include High Street, Station Road and London Road, all of which we cover for AHU cleaning. Main roads around Billericay include the A129 and A176, which makes travel easy for evening and night visits. Other places close to Billericay include Little Burstead (2 miles south), Great Burstead (2 miles south-east), Ramsden Heath (2 miles east), Ramsden Bellhouse (3 miles east) and Stock (3 miles north-east). We also work in nearby towns such as Chelmsford (8 miles north), Basildon (4 miles south), Brentwood (5 miles west), Maldon (13 miles north-east), Canvey Island (10 miles south-east) and Rayleigh (8 miles east). Billericay is one of the larger places we cover in Essex for AHU cleaning.
Local landmarks in Billericay
Locally, jobs take us to businesses close to Lake Meadows, The Railway pub and The Billericay School, among other places. Billericay has its own railway station: Billericay station. A little further out are Mayflower Community Hospital (0.9 miles south-west) and Barleylands Farm Museum (2.1 miles south-east). Green spaces nearby include Norsey Wood.
Part by part
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. Cleaning keeps it running as intended.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. We plan safe access as part of the survey so the quote reflects it.